[AGPGART] Suspend/Resume improvements for ATI AGP

Based on patches in the Ubuntu kernel.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Dave Jones <davej@redhat.com>

drivers/char/agp/ati-agp.c

@@ -245,18 +245,20 @@ static int ati_configure(void)
 
 
 #ifdef CONFIG_PM
-static int agp_ati_resume(struct pci_dev *dev)
+static int agp_ati_suspend(struct pci_dev *dev, pm_message_t state)
 {
-	pci_restore_state(dev);
+	pci_save_state(dev);
+	pci_set_power_state (pdev, 3);
 
-	return ati_configure();
+	return 0;
 }
 
-static int agp_ati_suspend(struct pci_dev *dev, pm_message_t state)
+static int agp_ati_resume(struct pci_dev *dev)
 {
-	pci_save_state(dev);
+	pci_set_power_state (pdev, 0);
+	pci_restore_state(dev);
 
-	return 0;
+	return ati_configure();
 }
 #endif
 
@@ -545,8 +547,8 @@ static struct pci_driver agp_ati_pci_driver = {
 	.probe		= agp_ati_probe,
 	.remove		= agp_ati_remove,
 #ifdef CONFIG_PM
-	.resume		= agp_ati_resume,
 	.suspend	= agp_ati_suspend,
+	.resume		= agp_ati_resume,
 #endif
 };